Nut-lock device



Aug 12', 1930. N. MONNIER NUT LOCK DEVICE Opiginal Filed Oct. 28. 1921 77. Warn Her" vent-FDR Patented Aug. 12,1930

I UNITED STATES NICOLAS momma, or vannncnrmcn n'u'r-nocx nnvrcn Original application filed October 28, 1927, Serial No. 229,508, and in France Kay 25, 1987. Divided and.

this application filed November 17, 1928. Serial No. 820,158.

I The present invention which is a division of my copending application No. 229,508 filed October 28, 1927, relates to a modified embodiment of a nut-lock of the type described and broadly claimedin the above mentioned patent application.

An object of tlie invention is to provide a nut-lock of'the general type disclosed in the main patent a plication and which will be chiefly suitable or heavy bolts such as the bolts for railway fish-plates;

Another object of the invention is to provide means whereby the locking spring may occupy various positions with respect to the carrying member. A further object resides in the provision of anut-lock of the type referred to which will be eflicient and durable in operation, al-

thou h easy to be manufactured at a very.

0 smal cost.

With the above and other objects in view, the invention consists in the details of construction and in the arrangement and, combination of parts to be hereinafter more fully described and particularly pointed out in the ap ended claims. t

he inventionwill be now-specified with reference to the appended drawing, showing solely b way of example a preferred embodiment 0 the invention andin which Fig. 1 is a plan view of a'nut lock provided with a hook-shaped spring.

. Figs. '1 and 1 relate to the functioning of the embodiment shown in Fig. 1 Y I Fig. 2 shows a similar device provided with two sprin 'And F1 a shows alike device, in sieve-- tional an la-n views in which thespring comprises a tent o'peratingbranch. As represented in Fig. 1, the device com- 'prises a carryin memberv A adapted to be screwed upon a .t readed rod R, and a spring B made of. iano wire and having the-form of a simple ooked piecewith two unequal branches y-z being provided onthe branch 2. As described in the main atent,-:the .ca member A is constitu by .a cap providg with a'central aperture and a flange. The edge h of the to central aperture of the said member is given a small boss or shoulder a" the form of a helix having the same pitch as the nut with which the device is to be used; this form can begiven to the edge 71. by the pressin process, after making a slight slot Zwhere y the said'form may be produced, or by like means. In all cases the edge 72. which is thus shaped is given the outline of a helix having the same pitch as the corresponding nut.

According to the present invention, the upper edge of the flange is turned in so as to form a kind of groove for the purpose of maintaining the s ring in a plane perpendicular to the axis 0 the bolt. Further the lateral flange is provided with a plurality of recesses a; or openings, the cap being thus given a castellated shape. a

The operation is as, follows. With the braking device mounted in place, as shown in Fig. 1, the branches y and .2 will tend to move apart; the point thread of the bolt; the oss 2 of the branch 2 will bear upon the oove of the device and a'gainstthe' edge 0 one of the apertures :22 whilst the branch (I bears against the ed e of another aperture 0:. To remove the bra ing device, I dispose (Fig. 1) the pierced end of the spindle H upon the end of the branch 2 and operate the device by three movements: (1) The branch 2 is bent in the direction of the arrow 1 so as to disengage the boss 2 from the edge ofthe a rture; (2) due to its elasticity thebranch z will move in the other direction according to .the arrow 2 and is thus removed b its own action from the move of the evice; (3) I push upon the ook according to the arrow 3, and said hook will be at once released from the screw thread. j

To place the device in position (Fig. 1

1; first screw the device A upon the bolt until it makes contact with the nut, and then operate from one of the said a rtures, the sme bolt; I then use t e spindle H to drive the hand to dispose the hook as re w .sente with the large branch 2 exten 'n is jammed into the branch 2 inthe direction of the arrow 5 so as be varied in any suitable manner as to branches of the hook are to be brought together inithis movement.

As shown in Fig. 2, the device may comprise two braking rings in the symmetrical podtion, and in t is manner the device A cannot .be screwed or unscrewed.

Fig. 3 shows a like construction having one or two braking springs, but herein the branches 2, are bent at right angles at V to allow hand operation of the device 'by means of .its bent ends, without requiringthe use of the spindle H. '7

Obviously the carrying member A may be constituted by the nut itself rovided with a recess adjacent the threaded ole and the several parts composing the braking device may 7 I size and disposition without departing from the scodpe of the invention as hereinafter .claime Having now described "my invention what- I claim as new and desire to secure by Letters Patent is: r

1. A nut-lock comprisingnin combination a screwthreaded rod, a mem r adapted to be screwed therelilpon, and provided with an annular recess a Jaeent and rod, a spring wire carried by sai said U-sh ped rt urah f wit a a po ion,ap 'tyo o ings in the wall bounding said each df w 'ch being adapted to receive and seat the rounded part of said U-shaped portion, one end thereof engagingthe threads of the rod, and the other branch resiliently engaging the l wall of said said 2.. A nut-lock compri in combinationa screwthreaded rod, a mem r adapted to be screwed thereupon and rovided with an annular recess ad acent-sa1d rod, a-wire carried by said member, means for ho ding 'ng in a plane perpendicular to the axis 0 the rod, said spring being provided with a U-shaped portion, a plurality of notches in the said races so as to form a castellated member, each of said notches being adapted to receive-and seat the rounded part of said U-shaped portion,

one end thereof an? the threads of thei rod and the other ran ing the wall of said receq.

3. A nut-lock comprising in combination with a screwthreaded rod, a member adapted to be screwed uponaid rod and provided with an annular recessadjacent .said' r stantiall length,

s ew

'receq the shorted: branch ofsaidU .bemgadag tedtojamag'ainstthesaid threaded an'abutmentis rovided onthe m iornsilie fly 't of another aperture cut out in lid other s member, means for holding springl in a plane perpendicular to the o sai rod, said springlbeing-provided U 'hol g the spring m jamming threads of the rod and the-other resiliently that the end of the shortest branch may en-- wall bounding the recess whereby the spring is held in its operative position.

4. A nut-lock compr sing in combination with a screwthreaded rod, a member adapted to be screwed thereupon and rovided with an annular recess adjacent sai rod, a groove in the internabwall bounding said recess, a plurality of spaced notchescut out in said wall a spring wire comprisin a U-s'haped portion, the rounded part 0 said U- en- .one of said notches, the shortest ofsaid U-spring engaging the bolt threads and a pro ecting part being provided on the ot er branch for cooperating with one of the other notches and resiliently goressing the jamming branch against the It threads.

5.4A nut-lock comprising in combination a with a screwthreaded rod a nut, a cap lmVj-lfi a central aperture in the bottom and a later flange the upper edge thereof be' turned in so as to form a kin of groove, sai flan beinsgl cut out so as to form a castella cap, a ot in said bottom, the edge of said central I aperture being stamped into a helical surface adapted to cooperate with the threads of the rod whereby said cap may. be'screwed thereon above the nut, a spring wire comp'ri a U-shaped portion, the rounded part of sai 1 any one of said channel-sha V notches, the shortest branch of said U sprm engaging the bolt threads, the other branc being bent so as to form an abutment coopera with the e of another notch for position.

6. A nut lock comprisin m combination a screwthreaded rod, a mem r adapted to be screwed thereupon and provided wlth an an nular recess ad acent sa d rod, a spring wire the rounded part 0 said U-shaped hook, the

shorter; branch of the hook engargin the ranc exten outwardly of the carrying member the other opening.

7. v nut lock comprisingnin combination a screwthreaded rod, a mem r adapted to be screwed there a wire spring having substantially the pm of a hook with two substraight branches of unequal apex of said hook being pivotally mounted on said member in such amanner gage the threads of the rod at a point situated forwardly in the unscre direction of the carrying member of theflme io' the axis of the threadedrod to the axis pivotationand an abutment. on said spring 18.

loo

carrying member, the outer side of thelonger branch of the hook engaging said abutment, whereby the spring is held in a state of elastic deformation and the shortest branch is resiliently pressed against the threads.

In testimony whereof I have signed my name to this specification.

NICOLAS MONNIER; 

